Oil-burner.



4'IIlaLIAlHI A. SHELll-Y,` OF POBTLAND, GREGON, ASSIGNOB. TO JOSEPH L. HOFFMAN, 0F PORTLAND, OREGON.

oit-BURNER.

Specification of Letters Yatent.

atented Jan. 25, i916.

To autr/10m it may Be it knovvn that l, WILLIAM A. SHELLBY, a citizen of the United States, and a resident of the city of Portland, county of Multnomah, State of Oregon, have invented a certain new and useful improvement in Oil-Burners, of which the following is a specification.

Mv invention relates to heating devices using inflammable fluids, such as hydrocarbon oils atomized by supplementary fluid blasts so as to produce an intensely hot flame.

My invention has for its object the providing of a burner producing a flame projected in the form of a sheet, and embodying means by which theprojection of thesheet of flame may be controlled so that it mayv be projected at any convenient angle.

A common .experience in oil burners is, that because of the discharge orifice of the fuel oil, or the atomizing fluid or blast becoming partly clogged, the sheet of flame emanating from the burner is deflected, and its efficiency is in this ivise deteriorated. And if a very hot flame is directed against the boiler tubes disastrous results may occur.

To overcome such undesirable condition is one of the main objects of my improved burner.

I attain my object by the combination of a burner comprising a fuel oil discharge Ispout, and atomizing-fluid or blast spouts located on either side of, and in a vertical plane with said oil spout, the floorV of the fuel spout being made with aV longitudinally projecting lip, and the overlying blast spout having a discharge orifice impinging at an angle upon said projecting lip of the oil spout, thereby promoting a thorough atomizing of the liquid fuel and the. interinixture of air therewith. The underlying blast spout has a discharge orifice discharging parallel to lsaid projecting lip .of the v'fuel' spout, and the supply pipes connected with said spouts have each a controlling. valve located at a distance from the nozzle. Bv said arrangement the fuel orifice of the nozzle normalliY tends to discharge the fuel in the form of a sheet straight ahead, and the underlying blast spout forms a supporting fluid stratum for the projected flame; and by relatively regulating the pressure of fluids discharged through the overlying and underlying blast spouts respectively, the direction of the flame can be con trolled and adjusted without access to the nozzle of the burner being required. By such means there is overcome any temporary clogging of the discharge orifices of either of said spouts. and the divergence of the flame, as mentioned, may be corrected.

rfhe details of construction and operation of my invention are hereinafter fully described.

In the accompanying drawings: Figure 1 is a perspective vievv showingr my burner as arranged in practice: and Fig. 2 is a vertical sectional detail of the nozzle Iof my burner.

My burner comprises a body, which may be a one-piece casting, a, provided vvith partitions, 7), dividing the interior into a fueloil spout, c, an overlying atomizing fluid or blast spout, (l, and an underlying atomizing fiuid or blast spout e. The discharge orice of the fuel spout, c', is contracted, as shown at f, and the floor of this spout is made with a longitudinally projecting lip g. The discharge orifice h of the overlying blast spout cl is curved vdoivnivard so as to cause the blast of atomizing fluid to impinge upon the lip f/ at an angle and intersect the jet of fuel oil, thus insuring a thorough intermixture of air with the combustible stream of oil ejected from the discharge orifice f The dischargeorifice, 2', of the underlying blast spout e discharges a the jet of oil discharged. from the orifice f of the spout c. 'The inner, end of the body, a, has threaded orifices in which are inserted the oil pipe j, and the steam or fluid pipes, It', l, provided with controllingl valves fm. n, 0,150 that the'pressure of the fuel, and likewise the force of the blasts emitted il gli the pipes k and Z, may be so adjusted as to properly project the flame as mentioned.

blast underlyingv lt will be observed, `by looking at the discharge orifice of the nozzle in Fig. 1, that the discharge orifices are made in the form of a transversely elongated slot, in order to spread the flame in the form of a horizontal sheet.

I claim:

lin a fuel-oil burner, a nozzle consisting of ,a body provided with internal, longitudinal, horizontal partitions dividing the body into three independent chambers arranged in vertical alinement, the discharge end of said chambers being contracted linto sub stantially equal size, slot-like, horizontally extending orifices, the discharge orifices of the upper two chambers merging into a single discharge orifice at the front of' the burner, and the discharge ,orifice of the lowermost chamber being below and inde. vpendent'of saidrrsingle or ,combined orice,

fuel-0i1 spout constituting the atomizing fluid-spouts, vthe upper yatomizing spout being adapted to so dischargerits jet, as to intersect the jet of fuel-oil', and means for varying the relative force `of thejets delivered by the atomizing fluid-spouts.

WILLIAM A. SHELLEY.` Witnesses: ,r r

MARY SHELLEY, CECIL LONG. 

